Skills

Communication Incident Response Stakeholder Management Architecture Enterprise Architecture Agile

Job Specifications

Title: Principal Architect / Head of TDA

Duration: 6 Months but a likely to be extended due to the Multi‑year programme

Contract: Inside IR35

Location: Stevenage 2 days in the office but flexible - Hybrid Working

Overview

Lead the architecture, design authority and technical delivery of a large, high‑profile government service. You’ll oversee the end‑to‑end digital solution, shape the technology roadmap, and guide multiple suppliers to deliver a secure, resilient and scalable platform.

Ideal for a senior contractor experienced in major defence‑related technology programmes.

Key Responsibilities

Act as the overall design authority for the programme’s digital and data systems.
Own the enterprise architecture, technical standards and roadmap.
Oversee security, performance, resilience and end-to-end solution integrity.
Coordinate and assure delivery across multiple primary and secondary suppliers.
Manage technical risk, lead incident response where required, and maintain service continuity.
Represent the programme in senior governance forums and with government stakeholders.
Drive continuous improvement, innovation and value creation across the technology landscape.
Lead and mentor cross‑functional technology teams.

Essential Experience

Significant experience delivering large-scale defence technology programmes.
Strong enterprise architecture and systems integration background.
Expertise working in multi‑supplier, multi‑partner ecosystems.
Proven track record of delivering complex digital services in Agile or hybrid environments.
Strong stakeholder management and communication skills at senior levels.
Experience managing security, accreditation, data protection and high‑assurance environments.
Ability to operate in fast-moving, high‑scrutiny environments.

About the Company

La Fosse is on a mission to help our customers achieve their ambitions, working by their side to create a total talent solution from the classroom to the boardroom. Our vision is simple: to lead by example to achieve a change in the standards of care within our industry. We partner with our customers to build solutions for their business and people challenges, leveraging our recruitment, academy, solutions, and executive search offerings. Our expert teams work at all levels on a permanent, contract, interim, and executive ... Know more